PU Foam for Sofa, Sofa Foam, Seat Foam, Sponge for Sofa, High Density Foam for Sofa PU foam block well-porosity; High resilient, reticulated, open cell ... , Material: PU, Polyether4, Cetification: ISO9001: 2008, SGS, ect.5, PU foam block, polyurethane foam material, reticulated, open cell6, Filter ...